<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>登陆页</title>
</head>
<body>
<form action="/doLogin" method="post">
  用户名  <input name="username" type="text">
    <br>
   密码 <input type="password" name="password"><br>
    <input type="hidden" name="url" th:value="${url}" >
    <input type="submit" value="登陆">
</form>
</body>
</html>